* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --text-primary: #ffffff;
    --text-secondary: #a8a8a8;
    --accent: #0a84ff;
    --accent-glow: rgba(10, 132, 255, 0.3);
    --excel-green: #1d6f42;
    --excel-green-glow: rgba(29, 111, 66, 0.4);
    --nav-height: 70px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(28, 28, 30, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    z-index: 1001;
    position: relative;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(20px);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
}

/* Mobile Menu Overlay */
@media (max-width: 968px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: 0;
        top: 0;
        flex-direction: column;
        background: rgba(28, 28, 30, 0.98);
        backdrop-filter: blur(40px);
        -webkit-backdrop-filter: blur(40px);
        width: 100%;
        height: 100vh;
        text-align: center;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transform: translateX(100%);
        transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        opacity: 0;
        visibility: hidden;
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        opacity: 0;
        transform: translateX(50px);
        transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    }

    .nav-menu.active li {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav-menu.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav-menu.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav-menu.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav-menu.active li:nth-child(6) { transition-delay: 0.35s; }

    .nav-link {
        font-size: 1.8rem;
        font-weight: 600;
    }

    .nav-link.active::after {
        bottom: -12px;
        height: 3px;
    }

    .nav-link:hover {
        transform: scale(1.1);
        display: inline-block;
    }
}

/* Parallax */
.parallax-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    background: linear-gradient(135deg, #000000 0%, #1c1c1e 50%, #000000 100%);
}

.parallax-layer {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
}

.layer-1 {
    background: var(--accent);
    top: 10%;
    left: 10%;
    animation: float 20s ease-in-out infinite;
}

.layer-2 {
    background: var(--excel-green);
    bottom: 20%;
    right: 15%;
    animation: float 25s ease-in-out infinite reverse;
}

.layer-3 {
    background: var(--accent);
    top: 50%;
    left: 50%;
    animation: float 30s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
}

header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    position: relative;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 1s ease forwards 0.3s;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 1s ease forwards 0.6s;
}

.hero-badge {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--excel-green);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 0 30px var(--excel-green-glow);
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 1s ease forwards 0.9s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease forwards 1.5s, bounce 2s ease-in-out infinite 2.5s;
}

.scroll-indicator::after {
    content: '';
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-secondary);
    border-radius: 20px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes fadeIn {
    to { opacity: 0.5; }
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 10px); }
}

@keyframes scroll {
    0% { transform: translate(-50%, 0); opacity: 1; }
    100% { transform: translate(-50%, 20px); opacity: 0; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 4rem 0;
}

.content-block {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 4rem;
    margin: 4rem 0;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.content-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.content-block h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-block h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.content-block p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-card {
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.stat-card.visible {
    opacity: 1;
    transform: scale(1);
}

.stat-card:hover {
    transform: scale(1.05) translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 40px var(--accent-glow);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent) 0%, var(--excel-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.game-card {
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-decoration: none;
    display: block;
    transition: all 0.4s ease;
}

.game-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 20px 60px var(--accent-glow);
}

.game-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.game-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.game-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}

.excel-highlight {
    color: var(--excel-green);
    font-weight: 600;
    text-shadow: 0 0 20px var(--excel-green-glow);
}

.quote-block {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-left: 4px solid var(--accent);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 12px;
    font-style: italic;
    font-size: 1.3rem;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.quote-block.visible {
    opacity: 1;
    transform: translateX(0);
}

.feature-list {
    list-style: none;
    margin: 2rem 0;
}

.feature-list li {
    padding: 1rem;
    margin: 1rem 0;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border-left: 3px solid var(--excel-green);
    font-size: 1.1rem;
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.feature-list li.visible {
    opacity: 1;
    transform: translateX(0);
}

.feature-list li:hover {
    background: var(--bg-secondary);
    transform: translateX(10px);
    border-left-color: var(--accent);
}

footer {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-secondary);
    margin-top: 4rem;
}

footer p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Game specific styles */
.game-container {
    min-height: calc(100vh - var(--nav-height));
    padding-top: calc(var(--nav-height) + 2rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-wrapper {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
}

.game-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-score {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--accent);
}

@media (max-width: 768px) {
    .content-block {
        padding: 2rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }
}